Powers:Enhanced strength, reflexes, speed, agility, and healing, as well as rudimentary sonar and a vestigial tail. Bio-occult affinity for mechanics.

Bio:Killpower is a genetically engineered super-being made by Gena-Sys Labs, secretly a subsidiary of Mys-Tech. He was made by the mad scientist Dr. Oonagh Mullarkey, using both human and animal DNA, as a form of expendable supersoldier, and designed to mature at a rapid rate. He was given the name "Julius Mullarkey" by his creator, and by the age of 18 months reached his adult size of 6 feet 8 inches and 325 pounds. He had a childlike mentality, but was not taught any morals and had no understanding of concepts like the value of human life. He took a great interest in guns and other weapons, the bigger the better, but regarded shooting people as a game.

He was used as an operative of Gena-Sys (and through them, Mys-Tech) until he was sent to recover the missing MOPED (Mind Operated PErsonal Dematerialization) unit, and encountered its new owner Motormouth. She taught him that killing people was bad... the first he had ever heard of such a notion ...and he broke down crying, thinking of all those he'd killed on his missions. When Motormouth was shot in the throat, Julius used his innate mechanical instincts to repair her with technology, giving her a sonic scream as well as integrating the MOPED device into her body. Motormouth and Killpower then became travelling partners and adventurers. Killpower willingly helped Motormouth accomplish her goals, such as tracking down the creators of the MOPED devices.

Killpower played an important role in the 'Mys-Tech Wars' though only his partner remembers the incident.